If your idea of a perfect Da Nang day involves racing down water slides in the morning and soaking in a Japanese hot spring by the afternoon, Mikazuki Water Park 365 is built for exactly that. Mikazuki Water Park 365 is a Japanese-themed water park on the northwest shore of Da Nang Bay, home to the largest indoor water park in Vietnam, an outdoor park beside Xuan Thieu Beach, and a real Japanese onsen — and it is open 365 days a year, which is where the name comes from. Built and run by Japan’s Mikazuki Corporation as part of the Da Nang Mikazuki Japanese Resorts & Spa, it’s a genuine little pocket of Japan on the Vietnamese coast: wave pools and white-knuckle slides under a vast roof, an artificial beach and lazy river outside, and an authentic mineral-bath onsen upstairs. People search for it under many names — Mikazuki, Mikazuki 365, Mikazuki Water Park, the Japanese water park in Da Nang — but they all mean the same place. This guide covers everything: what’s actually inside (slides, pools and onsen), exactly what tickets cost and which one to buy, the onsen rules that surprise first-timers, how to get there, whether it’s right for families, and how it compares with Da Nang’s other big attractions. For a family-friendly trip it pairs naturally with our Da Nang with kids guide, and you can slot it into the bigger picture with our complete Da Nang travel guide.

1. Mikazuki Water Park 365 at a Glance: What It Is & Why “365”

Let’s start with the big picture, because Mikazuki is more than just a water park. Mikazuki Water Park 365 is the water-and-onsen complex inside the Da Nang Mikazuki Japanese Resorts & Spa — a large Japanese-built resort on the northwest edge of Da Nang, beside Xuan Thieu Beach. It was developed by the Japanese company Mikazuki Corporation and had its grand opening in December 2020, bringing a slice of Japanese leisure culture — water parks and onsen bathing — to the central Vietnamese coast.

The “365” in the name is the whole selling point: the park’s centrepiece is a giant indoor hall, so it runs every single day of the year, whatever the weather. When Da Nang’s summer sun is brutal or the rainy season rolls in, the indoor park stays a comfortable, climate-controlled temperature. That makes it one of the few Da Nang attractions that’s completely weatherproof — a genuine ace up your sleeve on a wet day (see our what to do in Da Nang when it rains guide).

2. The Water Park: Slides, Wave Pool & Lazy River

This is the heart of the place, and it’s genuinely big. The indoor hall is the largest indoor water park in Vietnam, spanning tens of thousands of square metres under one roof, with a second water park outdoors. Between them you get a proper spread of attractions for all ages and nerve levels:

The mix of indoor and outdoor is what makes Mikazuki special: thrill-seekers can chase the big slides, families can park themselves at the shallow kids’ pools, and anyone can drift the lazy river or laze on the loungers. Free life vests and the warm wave pool make it relaxed for weaker swimmers, too.

3. The Onsen: A Real Japanese Hot Spring by the Sea

Here’s the part that sets Mikazuki apart from every other water park in Vietnam: a genuine Japanese onsen — a hot-spring mineral bath — using minerals imported from Japan. Onsen bathing is a cornerstone of Japanese wellness culture, and Mikazuki recreates it properly, on Level 4 of the complex.

There are two kinds of onsen experience, and it’s worth knowing the rules before you go, because they catch a lot of first-timers out:

The traditional nude bathing is, of course, completely separated by gender, so it’s modest and comfortable in practice — but if you’re not expecting it, the “no swimsuit” rule in the private onsen can be a surprise. If that’s not for you, the swimsuit-on shared pools give you the warm mineral-soak experience without the etiquette. Either way, the onsen is a wonderful, uniquely Japanese way to wind down after the slides.

4. Indoor vs Outdoor — and Why It’s a Rainy-Day Hero

One of the first things to understand is that Mikazuki is really two parks in one, and they keep slightly different hours:

The indoor hall is the reason Mikazuki earns its “365” name and its reputation as the city’s best wet-weather option. Da Nang’s rainy season runs roughly September to December, and a rainy or grey day can derail a beach holiday — but the indoor park doesn’t care what the sky is doing. It’s also a lifesaver in the fierce heat of June–August, when an air-conditioned water park beats baking on the sand. We rate it as one of the top picks in our rainy-day Da Nang round-up, and a strong all-rounder for families travelling with kids.

5. Tickets & Prices: Every Option Explained

The basic water-park ticket costs about 325,000 VND (roughly US$13) on weekdays and 375,000 VND at weekends for an adult, with cheaper rates for children and free entry for the smallest visitors. From there you can add the onsen and meals with combo tickets. Here’s the lay of the land:

A few things to keep in mind. First, prices change and vary by package, season and promotion, so treat these as a guide and confirm the current rate before you go. Second, buying online is almost always cheaper than paying at the gate — booking platforms regularly discount the entry and onsen tickets, and you skip the queue. Third, the basic ticket is water-park-only; if you specifically want the onsen, make sure your ticket includes it. Children are measured by height, not age, so a tall child may pay the adult rate.

6. Opening Hours & the Best Time to Visit

Mikazuki’s indoor park is open daily from 9:00am to 7:00pm, and the outdoor park from 9:00am to 6:00pm. That gives you a comfortable full day, but a little timing strategy makes a real difference:

• Go on a weekday if you can. Tickets are cheaper Monday–Friday, and the park is much quieter than at weekends, when local families and tour groups pack in.
• Arrive near opening (around 9am) to get the popular slides before the lines build, then move to the onsen or lazy river in the busier afternoon.
• Outdoor on a clear day, indoor any day. If the forecast is sunny, enjoy the outdoor park and artificial beach; if it’s hot or wet, the indoor hall is the move.
• Half a day is enough for many, but families with kids easily fill a full day. Plan onsen time for last, as a relaxing finish.

Because the indoor park is weatherproof, you can visit any month of the year — but if you want the outdoor beach-side park at its best, aim for the drier, sunnier months. Our Da Nang master guide has the season-by-season picture for planning the rest of your trip.

7. Where It Is & How to Get There

Mikazuki Water Park 365 is on the northwest edge of Da Nang, in the Xuan Thieu beach area on Nguyen Tat Thanh Street (Lien Chieu district) — about 15–20 minutes by car from the city centre, the airport or the main tourist beaches. It sits on its own stretch of bay, a little removed from the My Khe beach scene, which is part of its appeal.

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The simplest way is a Grab or a metered taxi — it’s an easy, inexpensive ride from almost anywhere in the city, and you can have one pick you up for the return. It’s on the opposite side of the bay from My Khe Beach and the main city beaches, so factor in the short journey. If you’re staying at the Mikazuki resort itself, you can simply walk down from your room.

8. The Resort, Hotel & Where to Eat

The water park is the star, but it’s wrapped inside a full Japanese-style resort, and that changes how you can use it. The Da Nang Mikazuki Japanese Resorts & Spa includes a 22-storey hotel with hundreds of rooms in modern Japanese style, plus the lower-rise Hinode Garden villas that blend Vietnamese and Japanese design. Staying on-site means you can roll out of bed and into the water park, and many rooms come with bay views; there’s even a striking infinity pool high up on the tower.

For food, you don’t need to leave: the resort has a Matsuri-style food court and several restaurants serving Japanese and Vietnamese dishes, so you can refuel between the slides and the onsen. As at most water parks, outside food and drink are generally restricted, so plan to eat there (the combo tickets that bundle lunch or a dinner buffet can be good value if you’ll eat on-site anyway).

9. Is Mikazuki Good for Families and Kids?

Yes — Mikazuki is one of the most family-friendly attractions in Da Nang. Alongside the big slides for teens and adults, there are shallow children’s pools, gentle kid-sized slides, and an outdoor pirate-ship play structure with fountains and small slides, plus a kids’ club area in the resort. The warm, temperature-controlled water and free life vests make it comfortable and reassuring for younger or weaker swimmers.

The indoor setting is a big plus for families: no sunburn, no rain-outs, and a controlled environment where you can keep an eye on everyone. Add the onsen for the grown-ups and you’ve got something for every age in one place. It’s a regular feature in our Da Nang with kids guide, and it makes a great contrast to a day at the city beaches or a trip up to Ba Na Hills.

10. Mikazuki vs Da Nang’s Other Big Attractions

Da Nang has no shortage of headline days out, so where does a water park fit? Here’s the honest comparison to help you choose:

They’re not really rivals — they’re different kinds of day. Many visitors pair Mikazuki for a water-and-onsen day with Ba Na Hills for the mountain spectacle and an evening at Asia Park. If your trip leans towards relaxing and family fun rather than sightseeing, Mikazuki earns its place; if you only have a day or two and want the postcard shots, the Golden Bridge at Ba Na Hills is the higher priority.

11. Tips, What to Bring & Is It Worth It?

A few practical pointers make a Mikazuki day smoother:

• Bring (or rent) swimwear and a towel. You’ll need a swimsuit for the pools and the shared onsen; towels and lockers are usually available to rent on-site.
• Buy tickets online in advance for the lower price and to skip the gate queue, and make sure your ticket includes the onsen if you want it.
• Go on a weekday for cheaper entry and far smaller crowds.
• Money for lockers, food and a towel — outside food is restricted, so budget to eat on-site or pick a meal combo.
• Plan the onsen for last as a relaxing wind-down, and remember the nude private areas are gender-separated.
• Mind the kids constantly and use the free life vests.

So is it worth it? For families, water-lovers and anyone curious about a Japanese onsen, absolutely. Mikazuki delivers Vietnam’s biggest indoor water park, an outdoor park by the sea and a genuine hot-spring soak in one weatherproof package — superb on a hot or rainy day and a refreshing change from temples and beaches. If you’re a sightseer chasing must-see landmarks on a short trip, it’s more of an optional extra. Either way, slot it into your plan with our complete Da Nang travel guide and pair it with our family guide for the perfect kid-friendly day.

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